Server Reply Data Packet Transmission for Network Command Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In communication systems where a client and server are interconnected through a network, the waiting period for the client to receive commands or data from the server is prolonged due to firewall restrictions, leading to potential communication errors and increased network traffic when attempting to increase transmission frequency.
Innovation Solution
Implementing a communication system where the server transmits a reply data packet to the client, including a command if available, or indicating no command is present, after a predetermined standby period, thereby reducing waiting time and preventing communication errors without increasing network traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the server waits for client request before transmitting command, then network security is maintained through firewall, but the waiting period for client to receive command is prolonged
Solution Approach 1:
The server performs preliminary actions by transmitting a notification packet to the client before the client sends its request packet. This notification packet informs the client that a command is ready, allowing the client to send its request at the appropriate time. This preliminary action eliminates the waiting period while maintaining firewall security, as the notification is sent proactively without requiring the client to continuously poll or wait passively.
2Loss of time
If the client increases transmission frequency of command request, then waiting period is reduced, but network traffic increases
Solution Approach 1:
The system implements feedback mechanism where the server sends a notification packet to the client when a command is ready. This notification serves as feedback that triggers the client to send its request packet. Instead of the client continuously increasing transmission frequency, the server's notification provides timely feedback that synchronizes communication, reducing waiting period without increasing overall network traffic.
3Productivity
If firewall settings are changed to allow server-to-client transmission, then command transmission is improved, but security policy must be changed which is troublesome
Solution Approach 1:
Instead of changing the firewall to allow server-to-client transmission (traditional approach), the invention inverts the approach by having the client initiate the communication with a request packet. The server responds to this request with the command, which is allowed through the firewall since it's a response to an incoming client request. This inversion maintains existing security policies while achieving efficient command transmission.
Data Source
AI summary
In a communication system having a client and a server capable of communicating with each other via a network, the server can transmit a command to the client in response to a command request transmitted from the client to the server. The server may include a replying unit that transmits replaying data in response to the command received from the client in such a manner that (a) if there is a command to be transmitted to the client, replying data including the command is transmitted to the client, and (b) if there is not a command to be transmitted to the client, replying data, which does not include a command is transmitted to the client. Further, the replying unit may transmit the replying data without a command to the client when a no-command status lasts a predetermined standby period after receipt of the command request.